Yma Sumac (September 13, 1922 – November 1, 2008) was a noted Peruvian soprano. In the 1950s, she was one of the most famous proponents of exotica music and became an international success, based on the merits of her extreme vocal range, which was said to be "well over four octaves" and was sometimes claimed to span even five octaves at her peak.

 

Zoila Augusta Emperatriz Chávarri del Castillo was born on September 13, 1922, in Callao, a seacoast city in Peru.

Stories published in the 1950s claimed that she was an Incan princess, directly descended from Atahualpa. The government of Peru in 1946 formally supported her claim to be descended from Atahualpa, the last Incan emperor". She was the subject of a series of publicity campaigns designed to shroud her origins in mystery: was she an Inca princess, one of the chosen ‘Golden Virgins’? Or a Brooklyn housewife named Amy Camus (Yma Sumac spelt backwards)? Whatever the doubts as to her heritage, what was abundantly genuine was Sumac’s four octave range, ascending from ‘female baritone, through lyric soprano, to high coloratura’.

Chávarri adopted the stage name of Imma Sumack (also spelled Ymma Sumack and Ima Sumack) before she left South America to go to the United States. The stage name was based on her mother's name, which was derived from Ima Shumaq, Quechua for "how beautiful!" although in interviews she claimed it meant "beautiful flower" or "beautiful girl".

Imma Sumack first appeared on radio in 1942 and married composer and bandleader, Moisés Vivanco, on June 6 of the same year. She recorded at least eighteen tracks of Peruvian folk songs in Argentina in 1943. These early recordings for the Odeon label featured Moisés Vivanco's group, Compañía Peruana de Arte, a group of forty-six Indian dancers, singers, and musicians.